Sash-lock.



F. E. SPARKS.

SASH LOOK.

APPLICATION FILED MAY 8, 1914 Patented J an. 26, 1915.

j Suva/H01 GUM/mu THE NORRIS PETERS CO.. PHOTG-LITHO WAbHI FRED E.SPARKS, 0F CHARLESTON, WEST VIRGINIA.

SASH-LOCK.

Specification of Letters Patent.

Patented Jan. 26, 1915.

Application filed May 8, 1914. Serial No. 837,213.

To all whom it may concern:

Be it known that I, FRED E. SrARKs, a citizen of the United States,residing at Charleston, in the county of Kanawha and State of WestVirginia, have invented certain new and useful Improvements in Sash-Locks; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention is a sash lock designed to be concealed within the windowsash and to be operated by means of a removable key, to lock the sashagainst movement.

One aim of the invention is to produce a simple, eflicient and reliablefastener capable of looking a sash in any desired position, and whichcan be readily applied and adjusted to sashes of various widths.

Another purpose of the invention is to simplify the parts and cheapenthe cost of manufacture, the few parts being readily separated, but whenapplied to a sash, door or the like, the parts are locked in theiradjusted positions against separation.

The inventionembodies a casing, within which is adj ustably mounted aplunger slide, and within the barrel is mounted a frameengaging plungerhaving a rack and adapted to be reciprocated by a pinion stem actuatedby a removable key, the pinion stem being locked to the plunger slideand into engagement with the plunger by a reduced portion thereofengaging the walls of an elongated slot in the casing.

The invention comprises certain other structural advantages which willbe hereinafter described and pointed out in the appended claims.

One embodiment of the invention is illustrated in the accompanyingdrawings, in which:

Figure 1 is a sectional view through the device shown applied to awindow sash. Fig. 2 is an end view of the device with the actuating keyremoved. Fig. 3 is a detail view of the casing. Fig. 4 is a longitudinalsectional view of the plunger slide, removed from the casing. Fig. 5 isa detail view, partly in section, of the actuating key. Fig. 6 is adetail view of the plunger. Fig. 7 is a detail view of the pinion stem.

In the embodiment of the invention illustrated in the drawings, thedevice comprises a casing l, which may be of any preferred form, butshown as having a cylindrical body 2 and a retaining plate 3 at one endthereof. The body 2 may be open at the end opposite the plate 3 toreceive a plunger slide 4 which may be slidably mounted in the easing 1.

The plunger slide 4 is shown provided with a longitudinal opening 5 anda transverse opening 6 registering with the longitudinal opening. Thisslide member 4 is preferably of less length than the casing. to permitof its being completely housed within the casing 1 if desired, orextended beyond the opened end thereof where a sash is of great widthand it is desired to position the actuating devices at greater distancesfrom the window frame.

A plunger 7 is adapted to be reciprocated in the opening 5 by a pinionstem 8. which is mounted within the transverse opening 6.

The plunger 7 is provided with a rack 9 formed thereon and intermediatethe ends thereof, the rack terminating before reaching the ends of theplunger and therebv preventing the plunger from being withdrawn from thedevice when the parts are assembled with the pinion encl 10 of stem 8meshing with the rack 9.

The pinion stem 8, is provided with a suitable pinion 10 formed at ornear one end thereof and adiacent the pinion may be formed a stop collar11 to provide a reduced neck 12 between the collar 11 and the body ofthe stem 8. This neck 19 is designed to register with a slot 13 formedin the casing 1 to permit the plunger slide 4 and pinion stem 8 to haveslid ng adiustment in the easing 1, the edge of the casing 1. formingthe slot 13 thereof, registering with the neck 12, while the collar 11and shoulder 14 serve as abutments to the plunger slide 4 during itssliding adjustment with relation to the easing 1. It will be understoodthat the plunger slide, during the adiustment, carries with it theplunger 7 and stem 8. The cooperation of the slot walls 13 with the neck12 permits of rotative movement of the pinion stem 8, while the collar11 and shoulder 14 of the stem 8 prevents longitudinal displacement ofthe stem 8 and pinion 10 with relation to the casing 1 and rack-plunger7. thereby locking the parts in their adjusted relation when the casingis secured in position. The plunger slide 4 is, therefore, separablefrom the casing 1, when the casing is removable from a fixture. Thepiston stem 8 is provided also with suitable means, such as a rib 15, tolie-engaged by an actuating key, such as 16, the rib 15 engagingsuitable means on the key, such as the slot 17, to cause the piston.stem 8 to move in unison with the key, and at the same time permit thekey 16 to be entirely removed from the fixed portion of the sash l ok.

It will be understood that the end- 3 of the casing 1 may be providedwith any suitable means to secure the device to a sash or door, such asthe screw holes 18 and that this end 3 may be provided with an aperture,such as 19, for the passage of the lockingend 20 of the plunger 7 Theframe of the window ordoor is provided with suitable recesses for thereception of the locking end 20 of the plunger 7, and these recesses maybe. provided with suitable ferrules 21 to receive the ends 20 andprevent wear on the frame material.

The device is show-n comprising but five parts, the casing 1, theplunger slide 4, the plunger rack 7, the pinion stem 8, and theactuating key 16, all of which may be readily separated from each otheror assembled, but when the device is aflixed to a structure the parts,except, the key 16, are so interlocked that they cannot all be separateduntil the whole, device is removed from the structure.

In applying the lock to a door or window, one or more recesses may bemade for the retaining or keeper ferrules 21. A hole is bored to receivethe part 2 of the casing and another hole is bored, at substantiallyright angles to the casing hole, to receive the pinion stem and its key16, the latter hole being positioned at a convenient point to. operatethe key. If the frame is deep, and it is necessary to bore the key holeat a comparatively great distance from the end 3 of the casing, then theplunger slide may be moved or adiusted to extend a suitable distancebeyond the open end of the casing 1, the slot 13 permitting awide rangeof adjustments and at the same time looking the stem 8 againstwithdrawal.

Assuming the holes to have been bored" for the casing 1 and key 6, and,if desired, an extension hole 22 to permit rearward movement of theplunger 7, the device is applied to a window as follows: The plunger 7is inserted into the longitudinal hole 5 of plungerslide 42', with therack- 9 registering with opening 6;- the plunger slide 4 andplunger 7are now inserted in the end opening for the casing 1; the pinion stem 8is then in-v serted' in the transverse opening of the sash with itspinion entering the opening 6 of the slide 1 to engage the teeth of therack 9; the casing 1 is then positioned in the casing opening in thesash with the slot 13; in alinement with the stemv 8', the casing wallsat slot 13 registering with the. neck 12 of'stem 8, the shoulder 14 andcollar 11 preventing longitudinal movement of the stem 8. The casing maybe secured in position by attaching devices passed through the apertures18. As the rack 9 terminates before reaching either end of the plunger,the plunger 7 is also looked against withdrawal from the device as longas the stem 8 is in operative position. The transverse hole for the stem8 in the sash may be of suflicient diameter to permit of the insertionof the slide of the key 16, thereby permitting the stem 8 and otherfixed parts of the device to be concealed in the sash, when the key 16is removed from the stem 8.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent is:

1. A sash fastener comprising a casing, a plunger slide, a rack plunger,a pinion stem to engage said rack plunger and slide, each said partsbeing readily separable from each other, and means on said pinion stemto engage the casing whereby all of said parts may be locked againstremoval when the fastener is secured to a fixture.

2. A sash fastener comprising a casing, a plunger slide adjustablymounted therein, a rack plunger carried by the plunger slide, and apinion stem adapted to reciprocate said rack plunger and to beadjustably locked to the casing and plunger slide.

3. A sash fastener comprising a casing, a plunger slide adjustablymounted therein, a rack plunger, a pinion-stem adapted to engage saidrack plunger and to limit the reciprocating movement thereof, and are1novable key to rotate said pinion stem.

4:. A sash fastener comprising a casing having a slot, a plunger slidemovable within said casing, a rack plunger carried by the plunger slideand adapted to extend beyond the casing, a pinion stem to reciprocatesaid rack plunger, said pinion stem being provided with a reduced neckadapted to register with the slot of the casing, and a shoulder andcollar adjacent said neck to limit the longitudinal movement of thepinion stem, and means to rotate said pinion stem. 5. A sash fastenercomprising a casing, a plunger slide adiustably mounted therein, aplunger carried by the plunger slide, means to reciprocate said plunger,said plunger reciprocating means being locked in position by the casingwhen the parts are assembled, and akey to operate said plunger reciprocating means.

In testimony whereof, I affix my signature, in presence of twowitnesses.

FRED E. SPARKS. WVitnesses:

J. F. H. Morn-nnsnnan, J, MICHAEL, Jr.

(lurks. qt. th s paten mex. b aoh ain fo 3 c nt a m bvafidr si g h emn isiea r f P ents,

' Washington, D. G.

